70974551 has 2 divisors, whose sum is σ = 70974552. Its totient is φ = 70974550.

The previous prime is 70974529. The next prime is 70974577. The reversal of 70974551 is 15547907.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70974551 - 2⁶ = 70974487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70974521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35487275 + 35487276.

It is an arithmetic number, because the mean of its divisors is an integer number (35487276).

Almost surely, 2^70974551 is an apocalyptic number.

70974551 is a deficient number, since it is larger than the sum of its proper divisors (1).

70974551 is an equidigital number, since it uses as much as digits as its factorization.

70974551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 70974551 is about 8424.6395175105. The cubic root of 70974551 is about 414.0322950061.

The spelling of 70974551 in words is "seventy million, nine hundred seventy-four thousand, five hundred fifty-one".